xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision 62e59c4e)
1 /*
2  *  This program is free software; you can redistribute it and/or modify
3  *  it under the terms of the GNU General Public License as published by
4  *  the Free Software Foundation; either version 2 of the License, or
5  *  (at your option) any later version.
6  *
7  *  This program is distributed in the hope that it will be useful,
8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  *  GNU Library General Public License for more details.
11  *
12  *  You should have received a copy of the GNU General Public License
13  *  along with this program; if not, write to the Free Software
14  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15  */
16 
17 /*
18     Vortex core low level functions.
19 
20  Author: Manuel Jander (mjander@users.sourceforge.cl)
21  These functions are mainly the result of translations made
22  from the original disassembly of the au88x0 binary drivers,
23  written by Aureal before they went down.
24  Many thanks to the Jeff Muizelaar, Kester Maddock, and whoever
25  contributed to the OpenVortex project.
26  The author of this file, put the few available pieces together
27  and translated the rest of the riddle (Mix, Src and connection stuff).
28  Some things are still to be discovered, and their meanings are unclear.
29 
30  Some of these functions aren't intended to be really used, rather
31  to help to understand how does the AU88X0 chips work. Keep them in, because
32  they could be used somewhere in the future.
33 
34  This code hasn't been tested or proof read thoroughly. If you wanna help,
35  take a look at the AU88X0 assembly and check if this matches.
36  Functions tested ok so far are (they show the desired effect
37  at least):
38    vortex_routes(); (1 bug fixed).
39    vortex_adb_addroute();
40    vortex_adb_addroutes();
41    vortex_connect_codecplay();
42    vortex_src_flushbuffers();
43    vortex_adbdma_setmode();  note: still some unknown arguments!
44    vortex_adbdma_startfifo();
45    vortex_adbdma_stopfifo();
46    vortex_fifo_setadbctrl(); note: still some unknown arguments!
47    vortex_mix_setinputvolumebyte();
48    vortex_mix_enableinput();
49    vortex_mixer_addWTD(); (fixed)
50    vortex_connection_adbdma_src_src();
51    vortex_connection_adbdma_src();
52    vortex_src_change_convratio();
53    vortex_src_addWTD(); (fixed)
54 
55  History:
56 
57  01-03-2003 First revision.
58  01-21-2003 Some bug fixes.
59  17-02-2003 many bugfixes after a big versioning mess.
60  18-02-2003 JAAAAAHHHUUUUUU!!!! The mixer works !! I'm just so happy !
61 			 (2 hours later...) I cant believe it! Im really lucky today.
62 			 Now the SRC is working too! Yeah! XMMS works !
63  20-02-2003 First steps into the ALSA world.
64  28-02-2003 As my birthday present, i discovered how the DMA buffer pages really
65             work :-). It was all wrong.
66  12-03-2003 ALSA driver starts working (2 channels).
67  16-03-2003 More srcblock_setupchannel discoveries.
68  12-04-2003 AU8830 playback support. Recording in the works.
69  17-04-2003 vortex_route() and vortex_routes() bug fixes. AU8830 recording
70  			works now, but chipn' dale effect is still there.
71  16-05-2003 SrcSetupChannel cleanup. Moved the Src setup stuff entirely
72             into au88x0_pcm.c .
73  06-06-2003 Buffer shifter bugfix. Mixer volume fix.
74  07-12-2003 A3D routing finally fixed. Believed to be OK.
75  25-03-2004 Many thanks to Claudia, for such valuable bug reports.
76 
77 */
78 
79 #include "au88x0.h"
80 #include "au88x0_a3d.h"
81 #include <linux/delay.h>
82 
83 /*  MIXER (CAsp4Mix.s and CAsp4Mixer.s) */
84 
85 // FIXME: get rid of this.
86 static int mchannels[NR_MIXIN];
87 static int rampchs[NR_MIXIN];
88 
89 static void vortex_mixer_en_sr(vortex_t * vortex, int channel)
90 {
91 	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
92 		hwread(vortex->mmio, VORTEX_MIXER_SR) | (0x1 << channel));
93 }
94 static void vortex_mixer_dis_sr(vortex_t * vortex, int channel)
95 {
96 	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
97 		hwread(vortex->mmio, VORTEX_MIXER_SR) & ~(0x1 << channel));
98 }
99 
100 #if 0
101 static void
102 vortex_mix_muteinputgain(vortex_t * vortex, unsigned char mix,
103 			 unsigned char channel)
104 {
105 	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_A + ((mix << 5) + channel),
106 		0x80);
107 	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_B + ((mix << 5) + channel),
108 		0x80);
109 }
110 
111 static int vortex_mix_getvolume(vortex_t * vortex, unsigned char mix)
112 {
113 	int a;
114 	a = hwread(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2)) & 0xff;
115 	//FP2LinearFrac(a);
116 	return (a);
117 }
118 
119 static int
120 vortex_mix_getinputvolume(vortex_t * vortex, unsigned char mix,
121 			  int channel, int *vol)
122 {
123 	int a;
124 	if (!(mchannels[mix] & (1 << channel)))
125 		return 0;
126 	a = hwread(vortex->mmio,
127 		   VORTEX_MIX_INVOL_A + (((mix << 5) + channel) << 2));
128 	/*
129 	   if (rampchs[mix] == 0)
130 	   a = FP2LinearFrac(a);
131 	   else
132 	   a = FP2LinearFracWT(a);
133 	 */
134 	*vol = a;
135 	return (0);
136 }
137 
138 static unsigned int vortex_mix_boost6db(unsigned char vol)
139 {
140 	return (vol + 8);	/* WOW! what a complex function! */
141 }
142 
143 static void vortex_mix_rampvolume(vortex_t * vortex, int mix)
144 {
145 	int ch;
146 	char a;
147 	// This function is intended for ramping down only (see vortex_disableinput()).
148 	for (ch = 0; ch < 0x20; ch++) {
149 		if (((1 << ch) & rampchs[mix]) == 0)
150 			continue;
151 		a = hwread(vortex->mmio,
152 			   VORTEX_MIX_INVOL_B + (((mix << 5) + ch) << 2));
153 		if (a > -126) {
154 			a -= 2;
155 			hwwrite(vortex->mmio,
156 				VORTEX_MIX_INVOL_A +
157 				(((mix << 5) + ch) << 2), a);
158 			hwwrite(vortex->mmio,
159 				VORTEX_MIX_INVOL_B +
160 				(((mix << 5) + ch) << 2), a);
161 		} else
162 			vortex_mix_killinput(vortex, mix, ch);
163 	}
164 }
165 
166 static int
167 vortex_mix_getenablebit(vortex_t * vortex, unsigned char mix, int mixin)
168 {
169 	int addr, temp;
170 	if (mixin >= 0)
171 		addr = mixin;
172 	else
173 		addr = mixin + 3;
174 	addr = ((mix << 3) + (addr >> 2)) << 2;
175 	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
176 	return ((temp >> (mixin & 3)) & 1);
177 }
178 #endif
179 static void
180 vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
181 			 unsigned char vol)
182 {
183 	int temp;
184 	hwwrite(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2), vol);
185 	if (1) {		/*if (this_10) */
186 		temp = hwread(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2));
187 		if ((temp != 0x80) || (vol == 0x80))
188 			return;
189 	}
190 	hwwrite(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2), vol);
191 }
192 
193 static void
194 vortex_mix_setinputvolumebyte(vortex_t * vortex, unsigned char mix,
195 			      int mixin, unsigned char vol)
196 {
197 	int temp;
198 
199 	hwwrite(vortex->mmio,
200 		VORTEX_MIX_INVOL_A + (((mix << 5) + mixin) << 2), vol);
201 	if (1) {		/* this_10, initialized to 1. */
202 		temp =
203 		    hwread(vortex->mmio,
204 			   VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2));
205 		if ((temp != 0x80) || (vol == 0x80))
206 			return;
207 	}
208 	hwwrite(vortex->mmio,
209 		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), vol);
210 }
211 
212 static void
213 vortex_mix_setenablebit(vortex_t * vortex, unsigned char mix, int mixin, int en)
214 {
215 	int temp, addr;
216 
217 	if (mixin < 0)
218 		addr = (mixin + 3);
219 	else
220 		addr = mixin;
221 	addr = ((mix << 3) + (addr >> 2)) << 2;
222 	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
223 	if (en)
224 		temp |= (1 << (mixin & 3));
225 	else
226 		temp &= ~(1 << (mixin & 3));
227 	/* Mute input. Astatic void crackling? */
228 	hwwrite(vortex->mmio,
229 		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), 0x80);
230 	/* Looks like clear buffer. */
231 	hwwrite(vortex->mmio, VORTEX_MIX_SMP + (mixin << 2), 0x0);
232 	hwwrite(vortex->mmio, VORTEX_MIX_SMP + 4 + (mixin << 2), 0x0);
233 	/* Write enable bit. */
234 	hwwrite(vortex->mmio, VORTEX_MIX_ENIN + addr, temp);
235 }
236 
237 static void
238 vortex_mix_killinput(vortex_t * vortex, unsigned char mix, int mixin)
239 {
240 	rampchs[mix] &= ~(1 << mixin);
241 	vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);
242 	mchannels[mix] &= ~(1 << mixin);
243 	vortex_mix_setenablebit(vortex, mix, mixin, 0);
244 }
245 
246 static void
247 vortex_mix_enableinput(vortex_t * vortex, unsigned char mix, int mixin)
248 {
249 	vortex_mix_killinput(vortex, mix, mixin);
250 	if ((mchannels[mix] & (1 << mixin)) == 0) {
251 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);	/*0x80 : mute */
252 		mchannels[mix] |= (1 << mixin);
253 	}
254 	vortex_mix_setenablebit(vortex, mix, mixin, 1);
255 }
256 
257 static void
258 vortex_mix_disableinput(vortex_t * vortex, unsigned char mix, int channel,
259 			int ramp)
260 {
261 	if (ramp) {
262 		rampchs[mix] |= (1 << channel);
263 		// Register callback.
264 		//vortex_mix_startrampvolume(vortex);
265 		vortex_mix_killinput(vortex, mix, channel);
266 	} else
267 		vortex_mix_killinput(vortex, mix, channel);
268 }
269 
270 static int
271 vortex_mixer_addWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
272 {
273 	int temp, lifeboat = 0, prev;
274 
275 	temp = hwread(vortex->mmio, VORTEX_MIXER_SR);
276 	if ((temp & (1 << ch)) == 0) {
277 		hwwrite(vortex->mmio, VORTEX_MIXER_CHNBASE + (ch << 2), mix);
278 		vortex_mixer_en_sr(vortex, ch);
279 		return 1;
280 	}
281 	prev = VORTEX_MIXER_CHNBASE + (ch << 2);
282 	temp = hwread(vortex->mmio, prev);
283 	while (temp & 0x10) {
284 		prev = VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2);
285 		temp = hwread(vortex->mmio, prev);
286 		//printk(KERN_INFO "vortex: mixAddWTD: while addr=%x, val=%x\n", prev, temp);
287 		if ((++lifeboat) > 0xf) {
288 			dev_err(vortex->card->dev,
289 				"vortex_mixer_addWTD: lifeboat overflow\n");
290 			return 0;
291 		}
292 	}
293 	hwwrite(vortex->mmio, VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2), mix);
294 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
295 	return 1;
296 }
297 
298 static int
299 vortex_mixer_delWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
300 {
301 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
302 	//int esp1f=edi(while)=src, esp10=ch;
303 
304 	eax = hwread(vortex->mmio, VORTEX_MIXER_SR);
305 	if (((1 << ch) & eax) == 0) {
306 		dev_err(vortex->card->dev, "mix ALARM %x\n", eax);
307 		return 0;
308 	}
309 	ebp = VORTEX_MIXER_CHNBASE + (ch << 2);
310 	esp18 = hwread(vortex->mmio, ebp);
311 	if (esp18 & 0x10) {
312 		ebx = (esp18 & 0xf);
313 		if (mix == ebx) {
314 			ebx = VORTEX_MIXER_RTBASE + (mix << 2);
315 			edx = hwread(vortex->mmio, ebx);
316 			//7b60
317 			hwwrite(vortex->mmio, ebp, edx);
318 			hwwrite(vortex->mmio, ebx, 0);
319 		} else {
320 			//7ad3
321 			edx =
322 			    hwread(vortex->mmio,
323 				   VORTEX_MIXER_RTBASE + (ebx << 2));
324 			//printk(KERN_INFO "vortex: mixdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
325 			while ((edx & 0xf) != mix) {
326 				if ((esi) > 0xf) {
327 					dev_err(vortex->card->dev,
328 						"mixdelWTD: error lifeboat overflow\n");
329 					return 0;
330 				}
331 				esp14 = ebx;
332 				ebx = edx & 0xf;
333 				ebp = ebx << 2;
334 				edx =
335 				    hwread(vortex->mmio,
336 					   VORTEX_MIXER_RTBASE + ebp);
337 				//printk(KERN_INFO "vortex: mixdelWTD: while addr=%x, val=%x\n", ebp, edx);
338 				esi++;
339 			}
340 			//7b30
341 			ebp = ebx << 2;
342 			if (edx & 0x10) {	/* Delete entry in between others */
343 				ebx = VORTEX_MIXER_RTBASE + ((edx & 0xf) << 2);
344 				edx = hwread(vortex->mmio, ebx);
345 				//7b60
346 				hwwrite(vortex->mmio,
347 					VORTEX_MIXER_RTBASE + ebp, edx);
348 				hwwrite(vortex->mmio, ebx, 0);
349 				//printk(KERN_INFO "vortex mixdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
350 			} else {	/* Delete last entry */
351 				//7b83
352 				if (esp14 == -1)
353 					hwwrite(vortex->mmio,
354 						VORTEX_MIXER_CHNBASE +
355 						(ch << 2), esp18 & 0xef);
356 				else {
357 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
358 					hwwrite(vortex->mmio,
359 						VORTEX_MIXER_RTBASE +
360 						(esp14 << 2), ebx);
361 					//printk(KERN_INFO "vortex mixdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
362 				}
363 				hwwrite(vortex->mmio,
364 					VORTEX_MIXER_RTBASE + ebp, 0);
365 				return 1;
366 			}
367 		}
368 	} else {
369 		//printk(KERN_INFO "removed last mix\n");
370 		//7be0
371 		vortex_mixer_dis_sr(vortex, ch);
372 		hwwrite(vortex->mmio, ebp, 0);
373 	}
374 	return 1;
375 }
376 
377 static void vortex_mixer_init(vortex_t * vortex)
378 {
379 	u32 addr;
380 	int x;
381 
382 	// FIXME: get rid of this crap.
383 	memset(mchannels, 0, NR_MIXOUT * sizeof(int));
384 	memset(rampchs, 0, NR_MIXOUT * sizeof(int));
385 
386 	addr = VORTEX_MIX_SMP + 0x17c;
387 	for (x = 0x5f; x >= 0; x--) {
388 		hwwrite(vortex->mmio, addr, 0);
389 		addr -= 4;
390 	}
391 	addr = VORTEX_MIX_ENIN + 0x1fc;
392 	for (x = 0x7f; x >= 0; x--) {
393 		hwwrite(vortex->mmio, addr, 0);
394 		addr -= 4;
395 	}
396 	addr = VORTEX_MIX_SMP + 0x17c;
397 	for (x = 0x5f; x >= 0; x--) {
398 		hwwrite(vortex->mmio, addr, 0);
399 		addr -= 4;
400 	}
401 	addr = VORTEX_MIX_INVOL_A + 0x7fc;
402 	for (x = 0x1ff; x >= 0; x--) {
403 		hwwrite(vortex->mmio, addr, 0x80);
404 		addr -= 4;
405 	}
406 	addr = VORTEX_MIX_VOL_A + 0x3c;
407 	for (x = 0xf; x >= 0; x--) {
408 		hwwrite(vortex->mmio, addr, 0x80);
409 		addr -= 4;
410 	}
411 	addr = VORTEX_MIX_INVOL_B + 0x7fc;
412 	for (x = 0x1ff; x >= 0; x--) {
413 		hwwrite(vortex->mmio, addr, 0x80);
414 		addr -= 4;
415 	}
416 	addr = VORTEX_MIX_VOL_B + 0x3c;
417 	for (x = 0xf; x >= 0; x--) {
418 		hwwrite(vortex->mmio, addr, 0x80);
419 		addr -= 4;
420 	}
421 	addr = VORTEX_MIXER_RTBASE + (MIXER_RTBASE_SIZE - 1) * 4;
422 	for (x = (MIXER_RTBASE_SIZE - 1); x >= 0; x--) {
423 		hwwrite(vortex->mmio, addr, 0x0);
424 		addr -= 4;
425 	}
426 	hwwrite(vortex->mmio, VORTEX_MIXER_SR, 0);
427 
428 	/* Set clipping ceiling (this may be all wrong). */
429 	/*
430 	for (x = 0; x < 0x80; x++) {
431 		hwwrite(vortex->mmio, VORTEX_MIXER_CLIP + (x << 2), 0x3ffff);
432 	}
433 	*/
434 	/*
435 	   call CAsp4Mix__Initialize_CAsp4HwIO____CAsp4Mixer____
436 	   Register ISR callback for volume smooth fade out.
437 	   Maybe this avoids clicks when press "stop" ?
438 	 */
439 }
440 
441 /*  SRC (CAsp4Src.s and CAsp4SrcBlock) */
442 
443 static void vortex_src_en_sr(vortex_t * vortex, int channel)
444 {
445 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
446 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) | (0x1 << channel));
447 }
448 
449 static void vortex_src_dis_sr(vortex_t * vortex, int channel)
450 {
451 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
452 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) & ~(0x1 << channel));
453 }
454 
455 static void vortex_src_flushbuffers(vortex_t * vortex, unsigned char src)
456 {
457 	int i;
458 
459 	for (i = 0x1f; i >= 0; i--)
460 		hwwrite(vortex->mmio,
461 			VORTEX_SRC_DATA0 + (src << 7) + (i << 2), 0);
462 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3), 0);
463 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3) + 4, 0);
464 }
465 
466 static void vortex_src_cleardrift(vortex_t * vortex, unsigned char src)
467 {
468 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
469 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT1 + (src << 2), 0);
470 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
471 }
472 
473 static void
474 vortex_src_set_throttlesource(vortex_t * vortex, unsigned char src, int en)
475 {
476 	int temp;
477 
478 	temp = hwread(vortex->mmio, VORTEX_SRC_SOURCE);
479 	if (en)
480 		temp |= 1 << src;
481 	else
482 		temp &= ~(1 << src);
483 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCE, temp);
484 }
485 
486 static int
487 vortex_src_persist_convratio(vortex_t * vortex, unsigned char src, int ratio)
488 {
489 	int temp, lifeboat = 0;
490 
491 	do {
492 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), ratio);
493 		temp = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
494 		if ((++lifeboat) > 0x9) {
495 			dev_err(vortex->card->dev, "Src cvr fail\n");
496 			break;
497 		}
498 	}
499 	while (temp != ratio);
500 	return temp;
501 }
502 
503 #if 0
504 static void vortex_src_slowlock(vortex_t * vortex, unsigned char src)
505 {
506 	int temp;
507 
508 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
509 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
510 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
511 	if (temp & 0x200)
512 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
513 			temp & ~0x200L);
514 }
515 
516 static void
517 vortex_src_change_convratio(vortex_t * vortex, unsigned char src, int ratio)
518 {
519 	int temp, a;
520 
521 	if ((ratio & 0x10000) && (ratio != 0x10000)) {
522 		if (ratio & 0x3fff)
523 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 1;
524 		else
525 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 2;
526 	} else
527 		a = 0xc;
528 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
529 	if (((temp >> 4) & 0xf) != a)
530 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
531 			(temp & 0xf) | ((a & 0xf) << 4));
532 
533 	vortex_src_persist_convratio(vortex, src, ratio);
534 }
535 
536 static int
537 vortex_src_checkratio(vortex_t * vortex, unsigned char src,
538 		      unsigned int desired_ratio)
539 {
540 	int hw_ratio, lifeboat = 0;
541 
542 	hw_ratio = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
543 
544 	while (hw_ratio != desired_ratio) {
545 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), desired_ratio);
546 
547 		if ((lifeboat++) > 15) {
548 			pr_err( "Vortex: could not set src-%d from %d to %d\n",
549 			       src, hw_ratio, desired_ratio);
550 			break;
551 		}
552 	}
553 
554 	return hw_ratio;
555 }
556 
557 #endif
558 /*
559  Objective: Set samplerate for given SRC module.
560  Arguments:
561 	card:	pointer to vortex_t strcut.
562 	src:	Integer index of the SRC module.
563 	cr:		Current sample rate conversion factor.
564 	b:		unknown 16 bit value.
565 	sweep:	Enable Samplerate fade from cr toward tr flag.
566 	dirplay: 1: playback, 0: recording.
567 	sl:		Slow Lock flag.
568 	tr:		Target samplerate conversion.
569 	thsource: Throttle source flag (no idea what that means).
570 */
571 static void vortex_src_setupchannel(vortex_t * card, unsigned char src,
572 			unsigned int cr, unsigned int b, int sweep, int d,
573 			int dirplay, int sl, unsigned int tr, int thsource)
574 {
575 	// noplayback: d=2,4,7,0xa,0xb when using first 2 src's.
576 	// c: enables pitch sweep.
577 	// looks like g is c related. Maybe g is a sweep parameter ?
578 	// g = cvr
579 	// dirplay: 0 = recording, 1 = playback
580 	// d = src hw index.
581 
582 	int esi, ebp = 0, esp10;
583 
584 	vortex_src_flushbuffers(card, src);
585 
586 	if (sweep) {
587 		if ((tr & 0x10000) && (tr != 0x10000)) {
588 			tr = 0;
589 			esi = 0x7;
590 		} else {
591 			if ((((short)tr) < 0) && (tr != 0x8000)) {
592 				tr = 0;
593 				esi = 0x8;
594 			} else {
595 				tr = 1;
596 				esi = 0xc;
597 			}
598 		}
599 	} else {
600 		if ((cr & 0x10000) && (cr != 0x10000)) {
601 			tr = 0;	/*ebx = 0 */
602 			esi = 0x11 - ((cr >> 0xe) & 7);
603 			if (cr & 0x3fff)
604 				esi -= 1;
605 			else
606 				esi -= 2;
607 		} else {
608 			tr = 1;
609 			esi = 0xc;
610 		}
611 	}
612 	vortex_src_cleardrift(card, src);
613 	vortex_src_set_throttlesource(card, src, thsource);
614 
615 	if ((dirplay == 0) && (sweep == 0)) {
616 		if (tr)
617 			esp10 = 0xf;
618 		else
619 			esp10 = 0xc;
620 		ebp = 0;
621 	} else {
622 		if (tr)
623 			ebp = 0xf;
624 		else
625 			ebp = 0xc;
626 		esp10 = 0;
627 	}
628 	hwwrite(card->mmio, VORTEX_SRC_U0 + (src << 2),
629 		(sl << 0x9) | (sweep << 0x8) | ((esi & 0xf) << 4) | d);
630 	/* 0xc0   esi=0xc c=f=0 d=0 */
631 	vortex_src_persist_convratio(card, src, cr);
632 	hwwrite(card->mmio, VORTEX_SRC_U1 + (src << 2), b & 0xffff);
633 	/* 0   b=0 */
634 	hwwrite(card->mmio, VORTEX_SRC_U2 + (src << 2),
635 		(tr << 0x11) | (dirplay << 0x10) | (ebp << 0x8) | esp10);
636 	/* 0x30f00 e=g=1 esp10=0 ebp=f */
637 	//printk(KERN_INFO "vortex: SRC %d, d=0x%x, esi=0x%x, esp10=0x%x, ebp=0x%x\n", src, d, esi, esp10, ebp);
638 }
639 
640 static void vortex_srcblock_init(vortex_t * vortex)
641 {
642 	u32 addr;
643 	int x;
644 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCESIZE, 0x1ff);
645 	/*
646 	   for (x=0; x<0x10; x++) {
647 	   vortex_src_init(&vortex_src[x], x);
648 	   }
649 	 */
650 	//addr = 0xcc3c;
651 	//addr = 0x26c3c;
652 	addr = VORTEX_SRC_RTBASE + 0x3c;
653 	for (x = 0xf; x >= 0; x--) {
654 		hwwrite(vortex->mmio, addr, 0);
655 		addr -= 4;
656 	}
657 	//addr = 0xcc94;
658 	//addr = 0x26c94;
659 	addr = VORTEX_SRC_CHNBASE + 0x54;
660 	for (x = 0x15; x >= 0; x--) {
661 		hwwrite(vortex->mmio, addr, 0);
662 		addr -= 4;
663 	}
664 }
665 
666 static int
667 vortex_src_addWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
668 {
669 	int temp, lifeboat = 0, prev;
670 	// esp13 = src
671 
672 	temp = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
673 	if ((temp & (1 << ch)) == 0) {
674 		hwwrite(vortex->mmio, VORTEX_SRC_CHNBASE + (ch << 2), src);
675 		vortex_src_en_sr(vortex, ch);
676 		return 1;
677 	}
678 	prev = VORTEX_SRC_CHNBASE + (ch << 2);	/*ebp */
679 	temp = hwread(vortex->mmio, prev);
680 	//while (temp & NR_SRC) {
681 	while (temp & 0x10) {
682 		prev = VORTEX_SRC_RTBASE + ((temp & 0xf) << 2);	/*esp12 */
683 		//prev = VORTEX_SRC_RTBASE + ((temp & (NR_SRC-1)) << 2); /*esp12*/
684 		temp = hwread(vortex->mmio, prev);
685 		//printk(KERN_INFO "vortex: srcAddWTD: while addr=%x, val=%x\n", prev, temp);
686 		if ((++lifeboat) > 0xf) {
687 			dev_err(vortex->card->dev,
688 				"vortex_src_addWTD: lifeboat overflow\n");
689 			return 0;
690 		}
691 	}
692 	hwwrite(vortex->mmio, VORTEX_SRC_RTBASE + ((temp & 0xf) << 2), src);
693 	//hwwrite(vortex->mmio, prev, (temp & (NR_SRC-1)) | NR_SRC);
694 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
695 	return 1;
696 }
697 
698 static int
699 vortex_src_delWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
700 {
701 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
702 	//int esp1f=edi(while)=src, esp10=ch;
703 
704 	eax = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
705 	if (((1 << ch) & eax) == 0) {
706 		dev_err(vortex->card->dev, "src alarm\n");
707 		return 0;
708 	}
709 	ebp = VORTEX_SRC_CHNBASE + (ch << 2);
710 	esp18 = hwread(vortex->mmio, ebp);
711 	if (esp18 & 0x10) {
712 		ebx = (esp18 & 0xf);
713 		if (src == ebx) {
714 			ebx = VORTEX_SRC_RTBASE + (src << 2);
715 			edx = hwread(vortex->mmio, ebx);
716 			//7b60
717 			hwwrite(vortex->mmio, ebp, edx);
718 			hwwrite(vortex->mmio, ebx, 0);
719 		} else {
720 			//7ad3
721 			edx =
722 			    hwread(vortex->mmio,
723 				   VORTEX_SRC_RTBASE + (ebx << 2));
724 			//printk(KERN_INFO "vortex: srcdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
725 			while ((edx & 0xf) != src) {
726 				if ((esi) > 0xf) {
727 					dev_warn(vortex->card->dev,
728 						 "srcdelWTD: error, lifeboat overflow\n");
729 					return 0;
730 				}
731 				esp14 = ebx;
732 				ebx = edx & 0xf;
733 				ebp = ebx << 2;
734 				edx =
735 				    hwread(vortex->mmio,
736 					   VORTEX_SRC_RTBASE + ebp);
737 				//printk(KERN_INFO "vortex: srcdelWTD: while addr=%x, val=%x\n", ebp, edx);
738 				esi++;
739 			}
740 			//7b30
741 			ebp = ebx << 2;
742 			if (edx & 0x10) {	/* Delete entry in between others */
743 				ebx = VORTEX_SRC_RTBASE + ((edx & 0xf) << 2);
744 				edx = hwread(vortex->mmio, ebx);
745 				//7b60
746 				hwwrite(vortex->mmio,
747 					VORTEX_SRC_RTBASE + ebp, edx);
748 				hwwrite(vortex->mmio, ebx, 0);
749 				//printk(KERN_INFO "vortex srcdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
750 			} else {	/* Delete last entry */
751 				//7b83
752 				if (esp14 == -1)
753 					hwwrite(vortex->mmio,
754 						VORTEX_SRC_CHNBASE +
755 						(ch << 2), esp18 & 0xef);
756 				else {
757 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
758 					hwwrite(vortex->mmio,
759 						VORTEX_SRC_RTBASE +
760 						(esp14 << 2), ebx);
761 					//printk(KERN_INFO"vortex srcdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
762 				}
763 				hwwrite(vortex->mmio,
764 					VORTEX_SRC_RTBASE + ebp, 0);
765 				return 1;
766 			}
767 		}
768 	} else {
769 		//7be0
770 		vortex_src_dis_sr(vortex, ch);
771 		hwwrite(vortex->mmio, ebp, 0);
772 	}
773 	return 1;
774 }
775 
776  /*FIFO*/
777 
778 static void
779 vortex_fifo_clearadbdata(vortex_t * vortex, int fifo, int x)
780 {
781 	for (x--; x >= 0; x--)
782 		hwwrite(vortex->mmio,
783 			VORTEX_FIFO_ADBDATA +
784 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
785 }
786 
787 #if 0
788 static void vortex_fifo_adbinitialize(vortex_t * vortex, int fifo, int j)
789 {
790 	vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
791 #ifdef CHIP_AU8820
792 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
793 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
794 #else
795 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
796 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
797 #endif
798 }
799 #endif
800 static void vortex_fifo_setadbvalid(vortex_t * vortex, int fifo, int en)
801 {
802 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
803 		(hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2)) &
804 		 0xffffffef) | ((1 & en) << 4) | FIFO_U1);
805 }
806 
807 static void
808 vortex_fifo_setadbctrl(vortex_t * vortex, int fifo, int stereo, int priority,
809 		       int empty, int valid, int f)
810 {
811 	int temp, lifeboat = 0;
812 	//int this_8[NR_ADB] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; /* position */
813 	int this_4 = 0x2;
814 	/* f seems priority related.
815 	 * CAsp4AdbDma::SetPriority is the only place that calls SetAdbCtrl with f set to 1
816 	 * every where else it is set to 0. It seems, however, that CAsp4AdbDma::SetPriority
817 	 * is never called, thus the f related bits remain a mystery for now.
818 	 */
819 	do {
820 		temp = hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
821 		if (lifeboat++ > 0xbb8) {
822 			dev_err(vortex->card->dev,
823 				"vortex_fifo_setadbctrl fail\n");
824 			break;
825 		}
826 	}
827 	while (temp & FIFO_RDONLY);
828 
829 	// AU8830 semes to take some special care about fifo content (data).
830 	// But i'm just to lazy to translate that :)
831 	if (valid) {
832 		if ((temp & FIFO_VALID) == 0) {
833 			//this_8[fifo] = 0;
834 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);	// this_4
835 #ifdef CHIP_AU8820
836 			temp = (this_4 & 0x1f) << 0xb;
837 #else
838 			temp = (this_4 & 0x3f) << 0xc;
839 #endif
840 			temp = (temp & 0xfffffffd) | ((stereo & 1) << 1);
841 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
842 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
843 			temp |= FIFO_U1;
844 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
845 #ifdef CHIP_AU8820
846 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
847 #endif
848 #ifdef CHIP_AU8830
849 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
850 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
851 #endif
852 #ifdef CHIP_AU8810
853 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
854 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
855 #endif
856 		}
857 	} else {
858 		if (temp & FIFO_VALID) {
859 #ifdef CHIP_AU8820
860 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
861 #endif
862 #ifdef CHIP_AU8830
863 			temp =
864 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
865 #endif
866 #ifdef CHIP_AU8810
867 			temp =
868 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
869 #endif
870 		} else
871 			/*if (this_8[fifo]) */
872 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
873 	}
874 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2), temp);
875 	hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
876 }
877 
878 #ifndef CHIP_AU8810
879 static void vortex_fifo_clearwtdata(vortex_t * vortex, int fifo, int x)
880 {
881 	if (x < 1)
882 		return;
883 	for (x--; x >= 0; x--)
884 		hwwrite(vortex->mmio,
885 			VORTEX_FIFO_WTDATA +
886 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
887 }
888 
889 static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j)
890 {
891 	vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
892 #ifdef CHIP_AU8820
893 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
894 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
895 #else
896 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
897 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
898 #endif
899 }
900 
901 static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en)
902 {
903 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
904 		(hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2)) &
905 		 0xffffffef) | ((en & 1) << 4) | FIFO_U1);
906 }
907 
908 static void
909 vortex_fifo_setwtctrl(vortex_t * vortex, int fifo, int ctrl, int priority,
910 		      int empty, int valid, int f)
911 {
912 	int temp = 0, lifeboat = 0;
913 	int this_4 = 2;
914 
915 	do {
916 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
917 		if (lifeboat++ > 0xbb8) {
918 			dev_err(vortex->card->dev,
919 				"vortex_fifo_setwtctrl fail\n");
920 			break;
921 		}
922 	}
923 	while (temp & FIFO_RDONLY);
924 
925 	if (valid) {
926 		if ((temp & FIFO_VALID) == 0) {
927 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);	// this_4
928 #ifdef CHIP_AU8820
929 			temp = (this_4 & 0x1f) << 0xb;
930 #else
931 			temp = (this_4 & 0x3f) << 0xc;
932 #endif
933 			temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
934 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
935 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
936 			temp |= FIFO_U1;
937 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
938 #ifdef CHIP_AU8820
939 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
940 #endif
941 #ifdef CHIP_AU8830
942 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
943 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
944 #endif
945 #ifdef CHIP_AU8810
946 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
947 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
948 #endif
949 		}
950 	} else {
951 		if (temp & FIFO_VALID) {
952 #ifdef CHIP_AU8820
953 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
954 #endif
955 #ifdef CHIP_AU8830
956 			temp =
957 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
958 #endif
959 #ifdef CHIP_AU8810
960 			temp =
961 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
962 #endif
963 		} else
964 			/*if (this_8[fifo]) */
965 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
966 	}
967 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
968 	hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
969 
970 /*
971     do {
972 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
973 		if (lifeboat++ > 0xbb8) {
974 			pr_err( "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
975 			break;
976 		}
977     } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
978 
979 
980 	if (valid) {
981 		if (temp & FIFO_VALID) {
982 			temp = 0x40000;
983 			//temp |= 0x08000000;
984 			//temp |= 0x10000000;
985 			//temp |= 0x04000000;
986 			//temp |= 0x00400000;
987 			temp |= 0x1c400000;
988 			temp &= 0xFFFFFFF3;
989 			temp &= 0xFFFFFFEF;
990 			temp |= (valid & 1) << 4;
991 			hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
992 			return;
993 		} else {
994 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
995 			return;
996 		}
997 	} else {
998 		temp &= 0xffffffef;
999 		temp |= 0x08000000;
1000 		temp |= 0x10000000;
1001 		temp |= 0x04000000;
1002 		temp |= 0x00400000;
1003 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1004 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
1005 		//((temp >> 6) & 0x3f)
1006 
1007 		priority = 0;
1008 		if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
1009 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
1010 		valid = 0xfb;
1011 		temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1012 		temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1013 		temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1014 		temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1015 		temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1016 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1017 	}
1018 
1019 	*/
1020 
1021 	/*
1022 	   temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1023 	   temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1024 	   temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1025 	   temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1026 	   temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1027 	   #ifdef FIFO_BITS
1028 	   temp = temp | FIFO_BITS | 40000;
1029 	   #endif
1030 	   // 0x1c440010, 0x1c400000
1031 	   hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1032 	 */
1033 }
1034 
1035 #endif
1036 static void vortex_fifo_init(vortex_t * vortex)
1037 {
1038 	int x;
1039 	u32 addr;
1040 
1041 	/* ADB DMA channels fifos. */
1042 	addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1043 	for (x = NR_ADB - 1; x >= 0; x--) {
1044 		hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1045 		if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1046 			dev_err(vortex->card->dev, "bad adb fifo reset!\n");
1047 		vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1048 		addr -= 4;
1049 	}
1050 
1051 #ifndef CHIP_AU8810
1052 	/* WT DMA channels fifos. */
1053 	addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1054 	for (x = NR_WT - 1; x >= 0; x--) {
1055 		hwwrite(vortex->mmio, addr, FIFO_U0);
1056 		if (hwread(vortex->mmio, addr) != FIFO_U0)
1057 			dev_err(vortex->card->dev,
1058 				"bad wt fifo reset (0x%08x, 0x%08x)!\n",
1059 				addr, hwread(vortex->mmio, addr));
1060 		vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1061 		addr -= 4;
1062 	}
1063 #endif
1064 	/* trigger... */
1065 #ifdef CHIP_AU8820
1066 	hwwrite(vortex->mmio, 0xf8c0, 0xd03);	//0x0843 0xd6b
1067 #else
1068 #ifdef CHIP_AU8830
1069 	hwwrite(vortex->mmio, 0x17000, 0x61);	/* wt a */
1070 	hwwrite(vortex->mmio, 0x17004, 0x61);	/* wt b */
1071 #endif
1072 	hwwrite(vortex->mmio, 0x17008, 0x61);	/* adb */
1073 #endif
1074 }
1075 
1076 /* ADBDMA */
1077 
1078 static void vortex_adbdma_init(vortex_t * vortex)
1079 {
1080 }
1081 
1082 static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1083 {
1084 	stream_t *dma = &vortex->dma_adb[adbdma];
1085 
1086 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1087 		dma->dma_ctrl);
1088 }
1089 
1090 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1091 {
1092 	stream_t *dma = &vortex->dma_adb[adbdma];
1093 	//hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1094 	hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1095 		sb << ((0xf - (adbdma & 0xf)) * 2));
1096 	dma->period_real = dma->period_virt = sb;
1097 }
1098 
1099 static void
1100 vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1101 			 int psize, int count)
1102 {
1103 	stream_t *dma = &vortex->dma_adb[adbdma];
1104 
1105 	dma->period_bytes = psize;
1106 	dma->nr_periods = count;
1107 
1108 	dma->cfg0 = 0;
1109 	dma->cfg1 = 0;
1110 	switch (count) {
1111 		/* Four or more pages */
1112 	default:
1113 	case 4:
1114 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1115 		hwwrite(vortex->mmio,
1116 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1117 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1118 		/* fall through */
1119 		/* 3 pages */
1120 	case 3:
1121 		dma->cfg0 |= 0x12000000;
1122 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1123 		hwwrite(vortex->mmio,
1124 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1125 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1126 		/* fall through */
1127 		/* 2 pages */
1128 	case 2:
1129 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1130 		hwwrite(vortex->mmio,
1131 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1132 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1133 		/* fall through */
1134 		/* 1 page */
1135 	case 1:
1136 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1137 		hwwrite(vortex->mmio,
1138 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1139 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1140 		break;
1141 	}
1142 	/*
1143 	pr_debug( "vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n",
1144 	       dma->cfg0, dma->cfg1);
1145 	*/
1146 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1147 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1148 
1149 	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1150 	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1151 }
1152 
1153 static void
1154 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1155 		      int fmt, int stereo, u32 offset)
1156 {
1157 	stream_t *dma = &vortex->dma_adb[adbdma];
1158 
1159 	dma->dma_unknown = stereo;
1160 	dma->dma_ctrl =
1161 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1162 	/* Enable PCMOUT interrupts. */
1163 	dma->dma_ctrl =
1164 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1165 
1166 	dma->dma_ctrl =
1167 	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1168 	dma->dma_ctrl =
1169 	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1170 
1171 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1172 		dma->dma_ctrl);
1173 	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1174 }
1175 
1176 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1177 {
1178 	stream_t *dma = &vortex->dma_adb[adbdma];
1179 	int page, p, pp, delta, i;
1180 
1181 	page =
1182 	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1183 	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1184 	if (dma->nr_periods >= 4)
1185 		delta = (page - dma->period_real) & 3;
1186 	else {
1187 		delta = (page - dma->period_real);
1188 		if (delta < 0)
1189 			delta += dma->nr_periods;
1190 	}
1191 	if (delta == 0)
1192 		return 0;
1193 
1194 	/* refresh hw page table */
1195 	if (dma->nr_periods > 4) {
1196 		for (i = 0; i < delta; i++) {
1197 			/* p: audio buffer page index */
1198 			p = dma->period_virt + i + 4;
1199 			if (p >= dma->nr_periods)
1200 				p -= dma->nr_periods;
1201 			/* pp: hardware DMA page index. */
1202 			pp = dma->period_real + i;
1203 			if (pp >= 4)
1204 				pp -= 4;
1205 			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1206 			hwwrite(vortex->mmio,
1207 				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1208 				snd_pcm_sgbuf_get_addr(dma->substream,
1209 				dma->period_bytes * p));
1210 			/* Force write thru cache. */
1211 			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1212 			       (((adbdma << 2) + pp) << 2));
1213 		}
1214 	}
1215 	dma->period_virt += delta;
1216 	dma->period_real = page;
1217 	if (dma->period_virt >= dma->nr_periods)
1218 		dma->period_virt -= dma->nr_periods;
1219 	if (delta != 1)
1220 		dev_info(vortex->card->dev,
1221 			 "%d virt=%d, real=%d, delta=%d\n",
1222 			 adbdma, dma->period_virt, dma->period_real, delta);
1223 
1224 	return delta;
1225 }
1226 
1227 
1228 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1229 	stream_t *dma = &vortex->dma_adb[adbdma];
1230 	int p, pp, i;
1231 
1232 	/* refresh hw page table */
1233 	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1234 		/* p: audio buffer page index */
1235 		p = dma->period_virt + i;
1236 		if (p >= dma->nr_periods)
1237 			p -= dma->nr_periods;
1238 		/* pp: hardware DMA page index. */
1239 		pp = dma->period_real + i;
1240 		if (dma->nr_periods < 4) {
1241 			if (pp >= dma->nr_periods)
1242 				pp -= dma->nr_periods;
1243 		}
1244 		else {
1245 			if (pp >= 4)
1246 				pp -= 4;
1247 		}
1248 		hwwrite(vortex->mmio,
1249 			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1250 			snd_pcm_sgbuf_get_addr(dma->substream,
1251 					       dma->period_bytes * p));
1252 		/* Force write thru cache. */
1253 		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1254 	}
1255 }
1256 
1257 static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1258 {
1259 	stream_t *dma = &vortex->dma_adb[adbdma];
1260 	int temp, page, delta;
1261 
1262 	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1263 	page = (temp & ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1264 	if (dma->nr_periods >= 4)
1265 		delta = (page - dma->period_real) & 3;
1266 	else {
1267 		delta = (page - dma->period_real);
1268 		if (delta < 0)
1269 			delta += dma->nr_periods;
1270 	}
1271 	return (dma->period_virt + delta) * dma->period_bytes
1272 		+ (temp & (dma->period_bytes - 1));
1273 }
1274 
1275 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1276 {
1277 	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1278 	stream_t *dma = &vortex->dma_adb[adbdma];
1279 
1280 	switch (dma->fifo_status) {
1281 	case FIFO_START:
1282 		vortex_fifo_setadbvalid(vortex, adbdma,
1283 					dma->fifo_enabled ? 1 : 0);
1284 		break;
1285 	case FIFO_STOP:
1286 		this_8 = 1;
1287 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1288 			dma->dma_ctrl);
1289 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1290 				       this_4, this_8,
1291 				       dma->fifo_enabled ? 1 : 0, 0);
1292 		break;
1293 	case FIFO_PAUSE:
1294 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1295 				       this_4, this_8,
1296 				       dma->fifo_enabled ? 1 : 0, 0);
1297 		break;
1298 	}
1299 	dma->fifo_status = FIFO_START;
1300 }
1301 
1302 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1303 {
1304 	stream_t *dma = &vortex->dma_adb[adbdma];
1305 
1306 	int this_8 = 1, this_4 = 0;
1307 	switch (dma->fifo_status) {
1308 	case FIFO_STOP:
1309 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1310 			dma->dma_ctrl);
1311 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1312 				       this_4, this_8,
1313 				       dma->fifo_enabled ? 1 : 0, 0);
1314 		break;
1315 	case FIFO_PAUSE:
1316 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1317 				       this_4, this_8,
1318 				       dma->fifo_enabled ? 1 : 0, 0);
1319 		break;
1320 	}
1321 	dma->fifo_status = FIFO_START;
1322 }
1323 
1324 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1325 {
1326 	stream_t *dma = &vortex->dma_adb[adbdma];
1327 
1328 	int this_8 = 0, this_4 = 0;
1329 	switch (dma->fifo_status) {
1330 	case FIFO_START:
1331 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1332 				       this_4, this_8, 0, 0);
1333 		break;
1334 	case FIFO_STOP:
1335 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1336 			dma->dma_ctrl);
1337 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1338 				       this_4, this_8, 0, 0);
1339 		break;
1340 	}
1341 	dma->fifo_status = FIFO_PAUSE;
1342 }
1343 
1344 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1345 {
1346 	stream_t *dma = &vortex->dma_adb[adbdma];
1347 
1348 	int this_4 = 0, this_8 = 0;
1349 	if (dma->fifo_status == FIFO_START)
1350 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1351 				       this_4, this_8, 0, 0);
1352 	else if (dma->fifo_status == FIFO_STOP)
1353 		return;
1354 	dma->fifo_status = FIFO_STOP;
1355 	dma->fifo_enabled = 0;
1356 }
1357 
1358 /* WTDMA */
1359 
1360 #ifndef CHIP_AU8810
1361 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1362 {
1363 	//int this_7c=dma_ctrl;
1364 	stream_t *dma = &vortex->dma_wt[wtdma];
1365 
1366 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1367 }
1368 
1369 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1370 {
1371 	stream_t *dma = &vortex->dma_wt[wtdma];
1372 	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1373 	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1374 		sb << ((0xf - (wtdma & 0xf)) * 2));
1375 	dma->period_real = dma->period_virt = sb;
1376 }
1377 
1378 static void
1379 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1380 			int psize, int count)
1381 {
1382 	stream_t *dma = &vortex->dma_wt[wtdma];
1383 
1384 	dma->period_bytes = psize;
1385 	dma->nr_periods = count;
1386 
1387 	dma->cfg0 = 0;
1388 	dma->cfg1 = 0;
1389 	switch (count) {
1390 		/* Four or more pages */
1391 	default:
1392 	case 4:
1393 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1394 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1395 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1396 		/* fall through */
1397 		/* 3 pages */
1398 	case 3:
1399 		dma->cfg0 |= 0x12000000;
1400 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1401 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1402 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1403 		/* fall through */
1404 		/* 2 pages */
1405 	case 2:
1406 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1407 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1408 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1409 		/* fall through */
1410 		/* 1 page */
1411 	case 1:
1412 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1413 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1414 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1415 		break;
1416 	}
1417 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1418 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1419 
1420 	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1421 	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1422 }
1423 
1424 static void
1425 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1426 		     /*int e, */ u32 offset)
1427 {
1428 	stream_t *dma = &vortex->dma_wt[wtdma];
1429 
1430 	//dma->this_08 = e;
1431 	dma->dma_unknown = d;
1432 	dma->dma_ctrl = 0;
1433 	dma->dma_ctrl =
1434 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1435 	/* PCMOUT interrupt */
1436 	dma->dma_ctrl =
1437 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1438 	/* Always playback. */
1439 	dma->dma_ctrl |= (1 << DIR_SHIFT);
1440 	/* Audio Format */
1441 	dma->dma_ctrl =
1442 	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1443 	/* Write into hardware */
1444 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1445 }
1446 
1447 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1448 {
1449 	stream_t *dma = &vortex->dma_wt[wtdma];
1450 	int page, p, pp, delta, i;
1451 
1452 	page =
1453 	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2))
1454 	     >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1455 	if (dma->nr_periods >= 4)
1456 		delta = (page - dma->period_real) & 3;
1457 	else {
1458 		delta = (page - dma->period_real);
1459 		if (delta < 0)
1460 			delta += dma->nr_periods;
1461 	}
1462 	if (delta == 0)
1463 		return 0;
1464 
1465 	/* refresh hw page table */
1466 	if (dma->nr_periods > 4) {
1467 		for (i = 0; i < delta; i++) {
1468 			/* p: audio buffer page index */
1469 			p = dma->period_virt + i + 4;
1470 			if (p >= dma->nr_periods)
1471 				p -= dma->nr_periods;
1472 			/* pp: hardware DMA page index. */
1473 			pp = dma->period_real + i;
1474 			if (pp >= 4)
1475 				pp -= 4;
1476 			hwwrite(vortex->mmio,
1477 				VORTEX_WTDMA_BUFBASE +
1478 				(((wtdma << 2) + pp) << 2),
1479 				snd_pcm_sgbuf_get_addr(dma->substream,
1480 						       dma->period_bytes * p));
1481 			/* Force write thru cache. */
1482 			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1483 			       (((wtdma << 2) + pp) << 2));
1484 		}
1485 	}
1486 	dma->period_virt += delta;
1487 	if (dma->period_virt >= dma->nr_periods)
1488 		dma->period_virt -= dma->nr_periods;
1489 	dma->period_real = page;
1490 
1491 	if (delta != 1)
1492 		dev_warn(vortex->card->dev, "wt virt = %d, delta = %d\n",
1493 			 dma->period_virt, delta);
1494 
1495 	return delta;
1496 }
1497 
1498 #if 0
1499 static void
1500 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1501 {
1502 	int temp;
1503 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1504 	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1505 	*pos = temp & POS_MASK;
1506 }
1507 
1508 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1509 {
1510 	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1511 		 POS_SHIFT) & POS_MASK);
1512 }
1513 #endif
1514 static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1515 {
1516 	stream_t *dma = &vortex->dma_wt[wtdma];
1517 	int temp;
1518 
1519 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1520 	temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
1521 	return temp;
1522 }
1523 
1524 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1525 {
1526 	stream_t *dma = &vortex->dma_wt[wtdma];
1527 	int this_8 = 0, this_4 = 0;
1528 
1529 	switch (dma->fifo_status) {
1530 	case FIFO_START:
1531 		vortex_fifo_setwtvalid(vortex, wtdma,
1532 				       dma->fifo_enabled ? 1 : 0);
1533 		break;
1534 	case FIFO_STOP:
1535 		this_8 = 1;
1536 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1537 			dma->dma_ctrl);
1538 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1539 				      this_4, this_8,
1540 				      dma->fifo_enabled ? 1 : 0, 0);
1541 		break;
1542 	case FIFO_PAUSE:
1543 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1544 				      this_4, this_8,
1545 				      dma->fifo_enabled ? 1 : 0, 0);
1546 		break;
1547 	}
1548 	dma->fifo_status = FIFO_START;
1549 }
1550 
1551 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1552 {
1553 	stream_t *dma = &vortex->dma_wt[wtdma];
1554 
1555 	int this_8 = 0, this_4 = 0;
1556 	switch (dma->fifo_status) {
1557 	case FIFO_STOP:
1558 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1559 			dma->dma_ctrl);
1560 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1561 				      this_4, this_8,
1562 				      dma->fifo_enabled ? 1 : 0, 0);
1563 		break;
1564 	case FIFO_PAUSE:
1565 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1566 				      this_4, this_8,
1567 				      dma->fifo_enabled ? 1 : 0, 0);
1568 		break;
1569 	}
1570 	dma->fifo_status = FIFO_START;
1571 }
1572 
1573 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1574 {
1575 	stream_t *dma = &vortex->dma_wt[wtdma];
1576 
1577 	int this_8 = 0, this_4 = 0;
1578 	switch (dma->fifo_status) {
1579 	case FIFO_START:
1580 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1581 				      this_4, this_8, 0, 0);
1582 		break;
1583 	case FIFO_STOP:
1584 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1585 			dma->dma_ctrl);
1586 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1587 				      this_4, this_8, 0, 0);
1588 		break;
1589 	}
1590 	dma->fifo_status = FIFO_PAUSE;
1591 }
1592 
1593 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1594 {
1595 	stream_t *dma = &vortex->dma_wt[wtdma];
1596 
1597 	int this_4 = 0, this_8 = 0;
1598 	if (dma->fifo_status == FIFO_START)
1599 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1600 				      this_4, this_8, 0, 0);
1601 	else if (dma->fifo_status == FIFO_STOP)
1602 		return;
1603 	dma->fifo_status = FIFO_STOP;
1604 	dma->fifo_enabled = 0;
1605 }
1606 
1607 #endif
1608 /* ADB Routes */
1609 
1610 typedef int ADBRamLink;
1611 static void vortex_adb_init(vortex_t * vortex)
1612 {
1613 	int i;
1614 	/* it looks like we are writing more than we need to...
1615 	 * if we write what we are supposed to it breaks things... */
1616 	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1617 	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1618 		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1619 			hwread(vortex->mmio,
1620 			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1621 	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1622 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1623 			hwread(vortex->mmio,
1624 			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1625 	}
1626 }
1627 
1628 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1629 {
1630 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1631 		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1632 }
1633 
1634 static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1635 {
1636 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1637 		hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1638 }
1639 
1640 static void
1641 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1642 		     ADBRamLink * route, int rnum)
1643 {
1644 	int temp, prev, lifeboat = 0;
1645 
1646 	if ((rnum <= 0) || (route == NULL))
1647 		return;
1648 	/* Write last routes. */
1649 	rnum--;
1650 	hwwrite(vortex->mmio,
1651 		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1652 		ROUTE_MASK);
1653 	while (rnum > 0) {
1654 		hwwrite(vortex->mmio,
1655 			VORTEX_ADB_RTBASE +
1656 			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1657 		rnum--;
1658 	}
1659 	/* Write first route. */
1660 	temp =
1661 	    hwread(vortex->mmio,
1662 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1663 	if (temp == ADB_MASK) {
1664 		/* First entry on this channel. */
1665 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1666 			route[0]);
1667 		vortex_adb_en_sr(vortex, channel);
1668 		return;
1669 	}
1670 	/* Not first entry on this channel. Need to link. */
1671 	do {
1672 		prev = temp;
1673 		temp =
1674 		    hwread(vortex->mmio,
1675 			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1676 		if ((lifeboat++) > ADB_MASK) {
1677 			dev_err(vortex->card->dev,
1678 				"vortex_adb_addroutes: unending route! 0x%x\n",
1679 				*route);
1680 			return;
1681 		}
1682 	}
1683 	while (temp != ADB_MASK);
1684 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1685 }
1686 
1687 static void
1688 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1689 		     ADBRamLink route0, ADBRamLink route1)
1690 {
1691 	int temp, lifeboat = 0, prev;
1692 
1693 	/* Find route. */
1694 	temp =
1695 	    hwread(vortex->mmio,
1696 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1697 	if (temp == (route0 & ADB_MASK)) {
1698 		temp =
1699 		    hwread(vortex->mmio,
1700 			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1701 		if ((temp & ADB_MASK) == ADB_MASK)
1702 			vortex_adb_dis_sr(vortex, channel);
1703 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1704 			temp);
1705 		return;
1706 	}
1707 	do {
1708 		prev = temp;
1709 		temp =
1710 		    hwread(vortex->mmio,
1711 			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1712 		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1713 			dev_err(vortex->card->dev,
1714 				"vortex_adb_delroutes: route not found! 0x%x\n",
1715 				route0);
1716 			return;
1717 		}
1718 	}
1719 	while (temp != (route0 & ADB_MASK));
1720 	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1721 	if ((temp & ADB_MASK) == route1)
1722 		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1723 	/* Make bridge over deleted route. */
1724 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1725 }
1726 
1727 static void
1728 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1729 	     unsigned char source, unsigned char dest)
1730 {
1731 	ADBRamLink route;
1732 
1733 	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1734 	if (en) {
1735 		vortex_adb_addroutes(vortex, channel, &route, 1);
1736 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1737 		    && (source >= OFFSET_SRCOUT))
1738 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1739 					  channel);
1740 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1741 			 && (source >= OFFSET_MIXOUT))
1742 			vortex_mixer_addWTD(vortex,
1743 					    (source - OFFSET_MIXOUT), channel);
1744 	} else {
1745 		vortex_adb_delroutes(vortex, channel, route, route);
1746 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1747 		    && (source >= OFFSET_SRCOUT))
1748 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1749 					  channel);
1750 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1751 			 && (source >= OFFSET_MIXOUT))
1752 			vortex_mixer_delWTD(vortex,
1753 					    (source - OFFSET_MIXOUT), channel);
1754 	}
1755 }
1756 
1757 #if 0
1758 static void
1759 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1760 	      unsigned char source, unsigned char dest0, unsigned char dest1)
1761 {
1762 	ADBRamLink route[2];
1763 
1764 	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1765 	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1766 
1767 	if (en) {
1768 		vortex_adb_addroutes(vortex, channel, route, 2);
1769 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1770 		    && (source >= (OFFSET_SRCOUT)))
1771 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1772 					  channel);
1773 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1774 			 && (source >= (OFFSET_MIXOUT)))
1775 			vortex_mixer_addWTD(vortex,
1776 					    (source - OFFSET_MIXOUT), channel);
1777 	} else {
1778 		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1779 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1780 		    && (source >= (OFFSET_SRCOUT)))
1781 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1782 					  channel);
1783 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1784 			 && (source >= (OFFSET_MIXOUT)))
1785 			vortex_mixer_delWTD(vortex,
1786 					    (source - OFFSET_MIXOUT), channel);
1787 	}
1788 }
1789 
1790 #endif
1791 /* Route two sources to same target. Sources must be of same class !!! */
1792 static void
1793 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1794 		unsigned char source0, unsigned char source1,
1795 		unsigned char dest)
1796 {
1797 	ADBRamLink route[2];
1798 
1799 	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1800 	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1801 
1802 	if (dest < 0x10)
1803 		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1804 
1805 	if (en) {
1806 		vortex_adb_addroutes(vortex, ch, route, 2);
1807 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1808 		    && (source0 >= OFFSET_SRCOUT)) {
1809 			vortex_src_addWTD(vortex,
1810 					  (source0 - OFFSET_SRCOUT), ch);
1811 			vortex_src_addWTD(vortex,
1812 					  (source1 - OFFSET_SRCOUT), ch);
1813 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1814 			   && (source0 >= OFFSET_MIXOUT)) {
1815 			vortex_mixer_addWTD(vortex,
1816 					    (source0 - OFFSET_MIXOUT), ch);
1817 			vortex_mixer_addWTD(vortex,
1818 					    (source1 - OFFSET_MIXOUT), ch);
1819 		}
1820 	} else {
1821 		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1822 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1823 		    && (source0 >= OFFSET_SRCOUT)) {
1824 			vortex_src_delWTD(vortex,
1825 					  (source0 - OFFSET_SRCOUT), ch);
1826 			vortex_src_delWTD(vortex,
1827 					  (source1 - OFFSET_SRCOUT), ch);
1828 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1829 			   && (source0 >= OFFSET_MIXOUT)) {
1830 			vortex_mixer_delWTD(vortex,
1831 					    (source0 - OFFSET_MIXOUT), ch);
1832 			vortex_mixer_delWTD(vortex,
1833 					    (source1 - OFFSET_MIXOUT), ch);
1834 		}
1835 	}
1836 }
1837 
1838 /* Connection stuff */
1839 
1840 // Connect adbdma to src('s).
1841 static void
1842 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1843 			     unsigned char adbdma, unsigned char src)
1844 {
1845 	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1846 }
1847 
1848 // Connect SRC to mixin.
1849 static void
1850 vortex_connection_src_mixin(vortex_t * vortex, int en,
1851 			    unsigned char channel, unsigned char src,
1852 			    unsigned char mixin)
1853 {
1854 	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1855 }
1856 
1857 // Connect mixin with mix output.
1858 static void
1859 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1860 			    unsigned char mix, int a)
1861 {
1862 	if (en) {
1863 		vortex_mix_enableinput(vortex, mix, mixin);
1864 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1865 	} else
1866 		vortex_mix_disableinput(vortex, mix, mixin, a);
1867 }
1868 
1869 // Connect absolut address to mixin.
1870 static void
1871 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1872 			    unsigned char channel, unsigned char source,
1873 			    unsigned char mixin)
1874 {
1875 	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1876 }
1877 
1878 static void
1879 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1880 			     unsigned char src, unsigned char adbdma)
1881 {
1882 	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1883 }
1884 
1885 static void
1886 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1887 				 unsigned char ch, unsigned char src0,
1888 				 unsigned char src1, unsigned char adbdma)
1889 {
1890 
1891 	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1892 			ADB_DMA(adbdma));
1893 }
1894 
1895 // mix to absolut address.
1896 static void
1897 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1898 			  unsigned char mix, unsigned char dest)
1899 {
1900 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1901 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1902 }
1903 
1904 // mixer to src.
1905 static void
1906 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1907 			  unsigned char mix, unsigned char src)
1908 {
1909 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1910 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1911 }
1912 
1913 #if 0
1914 static void
1915 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1916 				 unsigned char channel,
1917 				 unsigned char adbdma, unsigned char src0,
1918 				 unsigned char src1)
1919 {
1920 	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1921 		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1922 }
1923 
1924 // Connect two mix to AdbDma.
1925 static void
1926 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1927 				 unsigned char ch, unsigned char mix0,
1928 				 unsigned char mix1, unsigned char adbdma)
1929 {
1930 
1931 	ADBRamLink routes[2];
1932 	routes[0] =
1933 	    (((mix0 +
1934 	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1935 	routes[1] =
1936 	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1937 								   0x20) &
1938 								  ADB_MASK);
1939 	if (en) {
1940 		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1941 		vortex_mixer_addWTD(vortex, mix0, ch);
1942 		vortex_mixer_addWTD(vortex, mix1, ch);
1943 	} else {
1944 		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1945 		vortex_mixer_delWTD(vortex, mix0, ch);
1946 		vortex_mixer_delWTD(vortex, mix1, ch);
1947 	}
1948 }
1949 #endif
1950 
1951 /* CODEC connect. */
1952 
1953 static void
1954 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1955 {
1956 #ifdef CHIP_AU8820
1957 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1958 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1959 #else
1960 #if 1
1961 	// Connect front channels through EQ.
1962 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1963 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1964 	/* Lower volume, since EQ has some gain. */
1965 	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1966 	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1967 	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1968 	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1969 
1970 	/* Check if reg 0x28 has SDAC bit set. */
1971 	if (VORTEX_IS_QUAD(vortex)) {
1972 		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1973 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1974 					  ADB_CODECOUT(0 + 4));
1975 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1976 					  ADB_CODECOUT(1 + 4));
1977 		/* pr_debug( "SDAC detected "); */
1978 	}
1979 #else
1980 	// Use plain direct output to codec.
1981 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1982 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1983 #endif
1984 #endif
1985 }
1986 
1987 static void
1988 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1989 			unsigned char mixin1)
1990 {
1991 	/*
1992 	   Enable: 0x1, 0x1
1993 	   Channel: 0x11, 0x11
1994 	   ADB Source address: 0x48, 0x49
1995 	   Destination Asp4Topology_0x9c,0x98
1996 	 */
1997 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1998 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1999 }
2000 
2001 // Higher level ADB audio path (de)allocator.
2002 
2003 /* Resource manager */
2004 static int resnum[VORTEX_RESOURCE_LAST] =
2005     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
2006 /*
2007  Checkout/Checkin resource of given type.
2008  resmap: resource map to be used. If NULL means that we want to allocate
2009  a DMA resource (root of all other resources of a dma channel).
2010  out: Mean checkout if != 0. Else mean Checkin resource.
2011  restype: Indicates type of resource to be checked in or out.
2012 */
2013 static char
2014 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2015 {
2016 	int i, qty = resnum[restype], resinuse = 0;
2017 
2018 	if (out) {
2019 		/* Gather used resources by all streams. */
2020 		for (i = 0; i < NR_ADB; i++) {
2021 			resinuse |= vortex->dma_adb[i].resources[restype];
2022 		}
2023 		resinuse |= vortex->fixed_res[restype];
2024 		/* Find and take free resource. */
2025 		for (i = 0; i < qty; i++) {
2026 			if ((resinuse & (1 << i)) == 0) {
2027 				if (resmap != NULL)
2028 					resmap[restype] |= (1 << i);
2029 				else
2030 					vortex->dma_adb[i].resources[restype] |= (1 << i);
2031 				/*
2032 				pr_debug(
2033 				       "vortex: ResManager: type %d out %d\n",
2034 				       restype, i);
2035 				*/
2036 				return i;
2037 			}
2038 		}
2039 	} else {
2040 		if (resmap == NULL)
2041 			return -EINVAL;
2042 		/* Checkin first resource of type restype. */
2043 		for (i = 0; i < qty; i++) {
2044 			if (resmap[restype] & (1 << i)) {
2045 				resmap[restype] &= ~(1 << i);
2046 				/*
2047 				pr_debug(
2048 				       "vortex: ResManager: type %d in %d\n",
2049 				       restype, i);
2050 				*/
2051 				return i;
2052 			}
2053 		}
2054 	}
2055 	dev_err(vortex->card->dev,
2056 		"FATAL: ResManager: resource type %d exhausted.\n",
2057 		restype);
2058 	return -ENOMEM;
2059 }
2060 
2061 /* Default Connections  */
2062 
2063 static void vortex_connect_default(vortex_t * vortex, int en)
2064 {
2065 	// Connect AC97 codec.
2066 	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2067 				  VORTEX_RESOURCE_MIXOUT);
2068 	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2069 				  VORTEX_RESOURCE_MIXOUT);
2070 	if (VORTEX_IS_QUAD(vortex)) {
2071 		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2072 					  VORTEX_RESOURCE_MIXOUT);
2073 		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2074 					  VORTEX_RESOURCE_MIXOUT);
2075 	}
2076 	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2077 
2078 	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2079 				  VORTEX_RESOURCE_MIXIN);
2080 	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2081 				  VORTEX_RESOURCE_MIXIN);
2082 	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2083 
2084 	// Connect SPDIF
2085 #ifndef CHIP_AU8820
2086 	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2087 				  VORTEX_RESOURCE_MIXOUT);
2088 	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2089 				  VORTEX_RESOURCE_MIXOUT);
2090 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2091 				  ADB_SPDIFOUT(0));
2092 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2093 				  ADB_SPDIFOUT(1));
2094 #endif
2095 	// Connect WT
2096 #ifndef CHIP_AU8810
2097 	vortex_wt_connect(vortex, en);
2098 #endif
2099 	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2100 #ifndef CHIP_AU8820
2101 	vortex_Vort3D_connect(vortex, en);
2102 #endif
2103 	// Connect I2S
2104 
2105 	// Connect DSP interface for SQ3500 turbo (not here i think...)
2106 
2107 	// Connect AC98 modem codec
2108 
2109 }
2110 
2111 /*
2112   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2113   are deallocated.
2114   dma: DMA engine routes to be deallocated when dma >= 0.
2115   nr_ch: Number of channels to be de/allocated.
2116   dir: direction of stream. Uses same values as substream->stream.
2117   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2118   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2119 */
2120 static int
2121 vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
2122 			int type, int subdev)
2123 {
2124 	stream_t *stream;
2125 	int i, en;
2126 	struct pcm_vol *p;
2127 
2128 	if (dma >= 0) {
2129 		en = 0;
2130 		vortex_adb_checkinout(vortex,
2131 				      vortex->dma_adb[dma].resources, en,
2132 				      VORTEX_RESOURCE_DMA);
2133 	} else {
2134 		en = 1;
2135 		if ((dma =
2136 		     vortex_adb_checkinout(vortex, NULL, en,
2137 					   VORTEX_RESOURCE_DMA)) < 0)
2138 			return -EBUSY;
2139 	}
2140 
2141 	stream = &vortex->dma_adb[dma];
2142 	stream->dma = dma;
2143 	stream->dir = dir;
2144 	stream->type = type;
2145 
2146 	/* PLAYBACK ROUTES. */
2147 	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2148 		int src[4], mix[4], ch_top;
2149 #ifndef CHIP_AU8820
2150 		int a3d = 0;
2151 #endif
2152 		/* Get SRC and MIXER hardware resources. */
2153 		if (stream->type != VORTEX_PCM_SPDIF) {
2154 			for (i = 0; i < nr_ch; i++) {
2155 				if ((src[i] = vortex_adb_checkinout(vortex,
2156 							   stream->resources, en,
2157 							   VORTEX_RESOURCE_SRC)) < 0) {
2158 					memset(stream->resources, 0,
2159 					       sizeof(stream->resources));
2160 					return -EBUSY;
2161 				}
2162 				if (stream->type != VORTEX_PCM_A3D) {
2163 					if ((mix[i] = vortex_adb_checkinout(vortex,
2164 								   stream->resources,
2165 								   en,
2166 								   VORTEX_RESOURCE_MIXIN)) < 0) {
2167 						memset(stream->resources,
2168 						       0,
2169 						       sizeof(stream->resources));
2170 						return -EBUSY;
2171 					}
2172 				}
2173 			}
2174 		}
2175 #ifndef CHIP_AU8820
2176 		if (stream->type == VORTEX_PCM_A3D) {
2177 			if ((a3d =
2178 			     vortex_adb_checkinout(vortex,
2179 						   stream->resources, en,
2180 						   VORTEX_RESOURCE_A3D)) < 0) {
2181 				memset(stream->resources, 0,
2182 				       sizeof(stream->resources));
2183 				dev_err(vortex->card->dev,
2184 					"out of A3D sources. Sorry\n");
2185 				return -EBUSY;
2186 			}
2187 			/* (De)Initialize A3D hardware source. */
2188 			vortex_Vort3D_InitializeSource(&vortex->a3d[a3d], en,
2189 						       vortex);
2190 		}
2191 		/* Make SPDIF out exclusive to "spdif" device when in use. */
2192 		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2193 			vortex_route(vortex, 0, 0x14,
2194 				     ADB_MIXOUT(vortex->mixspdif[0]),
2195 				     ADB_SPDIFOUT(0));
2196 			vortex_route(vortex, 0, 0x14,
2197 				     ADB_MIXOUT(vortex->mixspdif[1]),
2198 				     ADB_SPDIFOUT(1));
2199 		}
2200 #endif
2201 		/* Make playback routes. */
2202 		for (i = 0; i < nr_ch; i++) {
2203 			if (stream->type == VORTEX_PCM_ADB) {
2204 				vortex_connection_adbdma_src(vortex, en,
2205 							     src[nr_ch - 1],
2206 							     dma,
2207 							     src[i]);
2208 				vortex_connection_src_mixin(vortex, en,
2209 							    0x11, src[i],
2210 							    mix[i]);
2211 				vortex_connection_mixin_mix(vortex, en,
2212 							    mix[i],
2213 							    MIX_PLAYB(i), 0);
2214 #ifndef CHIP_AU8820
2215 				vortex_connection_mixin_mix(vortex, en,
2216 							    mix[i],
2217 							    MIX_SPDIF(i % 2), 0);
2218 				vortex_mix_setinputvolumebyte(vortex,
2219 							      MIX_SPDIF(i % 2),
2220 							      mix[i],
2221 							      MIX_DEFIGAIN);
2222 #endif
2223 			}
2224 #ifndef CHIP_AU8820
2225 			if (stream->type == VORTEX_PCM_A3D) {
2226 				vortex_connection_adbdma_src(vortex, en,
2227 							     src[nr_ch - 1],
2228 								 dma,
2229 							     src[i]);
2230 				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2231 				/* XTalk test. */
2232 				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2233 				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2234 			}
2235 			if (stream->type == VORTEX_PCM_SPDIF)
2236 				vortex_route(vortex, en, 0x14,
2237 					     ADB_DMA(stream->dma),
2238 					     ADB_SPDIFOUT(i));
2239 #endif
2240 		}
2241 		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2242 			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2243 			for (i = nr_ch; i < ch_top; i++) {
2244 				vortex_connection_mixin_mix(vortex, en,
2245 							    mix[i % nr_ch],
2246 							    MIX_PLAYB(i), 0);
2247 #ifndef CHIP_AU8820
2248 				vortex_connection_mixin_mix(vortex, en,
2249 							    mix[i % nr_ch],
2250 							    MIX_SPDIF(i % 2),
2251 								0);
2252 				vortex_mix_setinputvolumebyte(vortex,
2253 							      MIX_SPDIF(i % 2),
2254 							      mix[i % nr_ch],
2255 							      MIX_DEFIGAIN);
2256 #endif
2257 			}
2258 			if (stream->type == VORTEX_PCM_ADB && en) {
2259 				p = &vortex->pcm_vol[subdev];
2260 				p->dma = dma;
2261 				for (i = 0; i < nr_ch; i++)
2262 					p->mixin[i] = mix[i];
2263 				for (i = 0; i < ch_top; i++)
2264 					p->vol[i] = 0;
2265 			}
2266 		}
2267 #ifndef CHIP_AU8820
2268 		else {
2269 			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2270 				vortex_route(vortex, en, 0x14,
2271 					     ADB_DMA(stream->dma),
2272 					     ADB_SPDIFOUT(1));
2273 		}
2274 		/* Reconnect SPDIF out when "spdif" device is down. */
2275 		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2276 			vortex_route(vortex, 1, 0x14,
2277 				     ADB_MIXOUT(vortex->mixspdif[0]),
2278 				     ADB_SPDIFOUT(0));
2279 			vortex_route(vortex, 1, 0x14,
2280 				     ADB_MIXOUT(vortex->mixspdif[1]),
2281 				     ADB_SPDIFOUT(1));
2282 		}
2283 #endif
2284 	/* CAPTURE ROUTES. */
2285 	} else {
2286 		int src[2], mix[2];
2287 
2288 		if (nr_ch < 1)
2289 			return -EINVAL;
2290 
2291 		/* Get SRC and MIXER hardware resources. */
2292 		for (i = 0; i < nr_ch; i++) {
2293 			if ((mix[i] =
2294 			     vortex_adb_checkinout(vortex,
2295 						   stream->resources, en,
2296 						   VORTEX_RESOURCE_MIXOUT))
2297 			    < 0) {
2298 				memset(stream->resources, 0,
2299 				       sizeof(stream->resources));
2300 				return -EBUSY;
2301 			}
2302 			if ((src[i] =
2303 			     vortex_adb_checkinout(vortex,
2304 						   stream->resources, en,
2305 						   VORTEX_RESOURCE_SRC)) < 0) {
2306 				memset(stream->resources, 0,
2307 				       sizeof(stream->resources));
2308 				return -EBUSY;
2309 			}
2310 		}
2311 
2312 		/* Make capture routes. */
2313 		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2314 		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2315 		if (nr_ch == 1) {
2316 			vortex_connection_mixin_mix(vortex, en,
2317 						    MIX_CAPT(1), mix[0], 0);
2318 			vortex_connection_src_adbdma(vortex, en,
2319 						     src[0],
2320 						     src[0], dma);
2321 		} else {
2322 			vortex_connection_mixin_mix(vortex, en,
2323 						    MIX_CAPT(1), mix[1], 0);
2324 			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2325 						  src[1]);
2326 			vortex_connection_src_src_adbdma(vortex, en,
2327 							 src[1], src[0],
2328 							 src[1], dma);
2329 		}
2330 	}
2331 	vortex->dma_adb[dma].nr_ch = nr_ch;
2332 
2333 #if 0
2334 	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2335 	if (nr_ch < 4) {
2336 		/* Copy stereo to rear channel (surround) */
2337 		snd_ac97_write_cache(vortex->codec,
2338 				     AC97_SIGMATEL_DAC2INVERT,
2339 				     snd_ac97_read(vortex->codec,
2340 						   AC97_SIGMATEL_DAC2INVERT)
2341 				     | 4);
2342 	} else {
2343 		/* Allow separate front and rear channels. */
2344 		snd_ac97_write_cache(vortex->codec,
2345 				     AC97_SIGMATEL_DAC2INVERT,
2346 				     snd_ac97_read(vortex->codec,
2347 						   AC97_SIGMATEL_DAC2INVERT)
2348 				     & ~((u32)
2349 					 4));
2350 	}
2351 #endif
2352 	return dma;
2353 }
2354 
2355 /*
2356  Set the SampleRate of the SRC's attached to the given DMA engine.
2357  */
2358 static void
2359 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2360 {
2361 	stream_t *stream = &(vortex->dma_adb[adbdma]);
2362 	int i, cvrt;
2363 
2364 	/* dir=1:play ; dir=0:rec */
2365 	if (dir)
2366 		cvrt = SRC_RATIO(rate, 48000);
2367 	else
2368 		cvrt = SRC_RATIO(48000, rate);
2369 
2370 	/* Setup SRC's */
2371 	for (i = 0; i < NR_SRC; i++) {
2372 		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2373 			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2374 	}
2375 }
2376 
2377 // Timer and ISR functions.
2378 
2379 static void vortex_settimer(vortex_t * vortex, int period)
2380 {
2381 	//set the timer period to <period> 48000ths of a second.
2382 	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2383 }
2384 
2385 #if 0
2386 static void vortex_enable_timer_int(vortex_t * card)
2387 {
2388 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2389 		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2390 }
2391 
2392 static void vortex_disable_timer_int(vortex_t * card)
2393 {
2394 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2395 		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2396 }
2397 
2398 #endif
2399 static void vortex_enable_int(vortex_t * card)
2400 {
2401 	// CAsp4ISR__EnableVortexInt_void_
2402 	hwwrite(card->mmio, VORTEX_CTRL,
2403 		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2404 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2405 		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2406 }
2407 
2408 static void vortex_disable_int(vortex_t * card)
2409 {
2410 	hwwrite(card->mmio, VORTEX_CTRL,
2411 		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2412 }
2413 
2414 static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2415 {
2416 	vortex_t *vortex = dev_id;
2417 	int i, handled;
2418 	u32 source;
2419 
2420 	//check if the interrupt is ours.
2421 	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2422 		return IRQ_NONE;
2423 
2424 	// This is the Interrupt Enable flag we set before (consistency check).
2425 	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2426 		return IRQ_NONE;
2427 
2428 	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2429 	// Reset IRQ flags.
2430 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2431 	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2432 	// Is at least one IRQ flag set?
2433 	if (source == 0) {
2434 		dev_err(vortex->card->dev, "missing irq source\n");
2435 		return IRQ_NONE;
2436 	}
2437 
2438 	handled = 0;
2439 	// Attend every interrupt source.
2440 	if (unlikely(source & IRQ_ERR_MASK)) {
2441 		if (source & IRQ_FATAL) {
2442 			dev_err(vortex->card->dev, "IRQ fatal error\n");
2443 		}
2444 		if (source & IRQ_PARITY) {
2445 			dev_err(vortex->card->dev, "IRQ parity error\n");
2446 		}
2447 		if (source & IRQ_REG) {
2448 			dev_err(vortex->card->dev, "IRQ reg error\n");
2449 		}
2450 		if (source & IRQ_FIFO) {
2451 			dev_err(vortex->card->dev, "IRQ fifo error\n");
2452 		}
2453 		if (source & IRQ_DMA) {
2454 			dev_err(vortex->card->dev, "IRQ dma error\n");
2455 		}
2456 		handled = 1;
2457 	}
2458 	if (source & IRQ_PCMOUT) {
2459 		/* ALSA period acknowledge. */
2460 		spin_lock(&vortex->lock);
2461 		for (i = 0; i < NR_ADB; i++) {
2462 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2463 				if (!vortex_adbdma_bufshift(vortex, i))
2464 					continue;
2465 				spin_unlock(&vortex->lock);
2466 				snd_pcm_period_elapsed(vortex->dma_adb[i].
2467 						       substream);
2468 				spin_lock(&vortex->lock);
2469 			}
2470 		}
2471 #ifndef CHIP_AU8810
2472 		for (i = 0; i < NR_WT; i++) {
2473 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2474 				/* FIXME: we ignore the return value from
2475 				 * vortex_wtdma_bufshift() below as the delta
2476 				 * calculation seems not working for wavetable
2477 				 * by some reason
2478 				 */
2479 				vortex_wtdma_bufshift(vortex, i);
2480 				spin_unlock(&vortex->lock);
2481 				snd_pcm_period_elapsed(vortex->dma_wt[i].
2482 						       substream);
2483 				spin_lock(&vortex->lock);
2484 			}
2485 		}
2486 #endif
2487 		spin_unlock(&vortex->lock);
2488 		handled = 1;
2489 	}
2490 	//Acknowledge the Timer interrupt
2491 	if (source & IRQ_TIMER) {
2492 		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2493 		handled = 1;
2494 	}
2495 	if ((source & IRQ_MIDI) && vortex->rmidi) {
2496 		snd_mpu401_uart_interrupt(vortex->irq,
2497 					  vortex->rmidi->private_data);
2498 		handled = 1;
2499 	}
2500 
2501 	if (!handled) {
2502 		dev_err(vortex->card->dev, "unknown irq source %x\n", source);
2503 	}
2504 	return IRQ_RETVAL(handled);
2505 }
2506 
2507 /* Codec */
2508 
2509 #define POLL_COUNT 1000
2510 static void vortex_codec_init(vortex_t * vortex)
2511 {
2512 	int i;
2513 
2514 	for (i = 0; i < 32; i++) {
2515 		/* the windows driver writes -i, so we write -i */
2516 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2517 		msleep(2);
2518 	}
2519 	if (0) {
2520 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2521 		msleep(1);
2522 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2523 		msleep(1);
2524 	} else {
2525 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2526 		msleep(2);
2527 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2528 		msleep(2);
2529 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2530 		msleep(2);
2531 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2532 		msleep(2);
2533 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2534 		msleep(2);
2535 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2536 	}
2537 	for (i = 0; i < 32; i++) {
2538 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2539 		msleep(5);
2540 	}
2541 	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2542 	msleep(1);
2543 	/* Enable codec channels 0 and 1. */
2544 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2545 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2546 }
2547 
2548 static void
2549 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2550 {
2551 
2552 	vortex_t *card = (vortex_t *) codec->private_data;
2553 	unsigned int lifeboat = 0;
2554 
2555 	/* wait for transactions to clear */
2556 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2557 		udelay(100);
2558 		if (lifeboat++ > POLL_COUNT) {
2559 			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2560 			return;
2561 		}
2562 	}
2563 	/* write register */
2564 	hwwrite(card->mmio, VORTEX_CODEC_IO,
2565 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2566 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2567 		VORTEX_CODEC_WRITE |
2568 		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2569 
2570 	/* Flush Caches. */
2571 	hwread(card->mmio, VORTEX_CODEC_IO);
2572 }
2573 
2574 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2575 {
2576 
2577 	vortex_t *card = (vortex_t *) codec->private_data;
2578 	u32 read_addr, data;
2579 	unsigned lifeboat = 0;
2580 
2581 	/* wait for transactions to clear */
2582 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2583 		udelay(100);
2584 		if (lifeboat++ > POLL_COUNT) {
2585 			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2586 			return 0xffff;
2587 		}
2588 	}
2589 	/* set up read address */
2590 	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2591 		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2592 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2593 
2594 	/* wait for address */
2595 	do {
2596 		udelay(100);
2597 		data = hwread(card->mmio, VORTEX_CODEC_IO);
2598 		if (lifeboat++ > POLL_COUNT) {
2599 			dev_err(card->card->dev,
2600 				"ac97 address never arrived\n");
2601 			return 0xffff;
2602 		}
2603 	} while ((data & VORTEX_CODEC_ADDMASK) !=
2604 		 (addr << VORTEX_CODEC_ADDSHIFT));
2605 
2606 	/* return data. */
2607 	return (u16) (data & VORTEX_CODEC_DATMASK);
2608 }
2609 
2610 /* SPDIF support  */
2611 
2612 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2613 {
2614 	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2615 
2616 	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2617 	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2618 		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2619 	//for (i=0x291D4; i<0x29200; i+=4)
2620 	for (i = 0; i < 11; i++)
2621 		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2622 	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2623 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2624 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2625 
2626 	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2627 	if (this_04 && this_08) {
2628 		int edi;
2629 
2630 		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2631 		if (i > 0x800) {
2632 			if (i < 0x1ffff)
2633 				edi = (i >> 1);
2634 			else
2635 				edi = 0x1ffff;
2636 		} else {
2637 			edi = 0x800;
2638 		}
2639 		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2640 		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2641 					this_0c, 1, 0, edi, 1);
2642 		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2643 					this_0c, 1, 0, edi, 1);
2644 	}
2645 
2646 	i = spdif_sr;
2647 	spdif_sr |= 0x8c;
2648 	switch (i) {
2649 	case 32000:
2650 		this_38 &= 0xFFFFFFFE;
2651 		this_38 &= 0xFFFFFFFD;
2652 		this_38 &= 0xF3FFFFFF;
2653 		this_38 |= 0x03000000;	/* set 32khz samplerate */
2654 		this_38 &= 0xFFFFFF3F;
2655 		spdif_sr &= 0xFFFFFFFD;
2656 		spdif_sr |= 1;
2657 		break;
2658 	case 44100:
2659 		this_38 &= 0xFFFFFFFE;
2660 		this_38 &= 0xFFFFFFFD;
2661 		this_38 &= 0xF0FFFFFF;
2662 		this_38 |= 0x03000000;
2663 		this_38 &= 0xFFFFFF3F;
2664 		spdif_sr &= 0xFFFFFFFC;
2665 		break;
2666 	case 48000:
2667 		if (spdif_mode == 1) {
2668 			this_38 &= 0xFFFFFFFE;
2669 			this_38 &= 0xFFFFFFFD;
2670 			this_38 &= 0xF2FFFFFF;
2671 			this_38 |= 0x02000000;	/* set 48khz samplerate */
2672 			this_38 &= 0xFFFFFF3F;
2673 		} else {
2674 			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2675 			this_38 |= 0x00000003;
2676 			this_38 &= 0xFFFFFFBF;
2677 			this_38 |= 0x80;
2678 		}
2679 		spdif_sr |= 2;
2680 		spdif_sr &= 0xFFFFFFFE;
2681 		break;
2682 
2683 	}
2684 	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2685 	   registers. seems to be for the standard IEC/SPDIF initialization
2686 	   stuff */
2687 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2688 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2689 	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2690 }
2691 
2692 /* Initialization */
2693 
2694 static int vortex_core_init(vortex_t *vortex)
2695 {
2696 
2697 	dev_info(vortex->card->dev, "init started\n");
2698 	/* Hardware Init. */
2699 	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2700 	msleep(5);
2701 	hwwrite(vortex->mmio, VORTEX_CTRL,
2702 		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2703 	msleep(5);
2704 	/* Reset IRQ flags */
2705 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2706 	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2707 
2708 	vortex_codec_init(vortex);
2709 
2710 #ifdef CHIP_AU8830
2711 	hwwrite(vortex->mmio, VORTEX_CTRL,
2712 		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2713 #endif
2714 
2715 	/* Init audio engine. */
2716 	vortex_adbdma_init(vortex);
2717 	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2718 	vortex_adb_init(vortex);
2719 	/* Init processing blocks. */
2720 	vortex_fifo_init(vortex);
2721 	vortex_mixer_init(vortex);
2722 	vortex_srcblock_init(vortex);
2723 #ifndef CHIP_AU8820
2724 	vortex_eq_init(vortex);
2725 	vortex_spdif_init(vortex, 48000, 1);
2726 	vortex_Vort3D_enable(vortex);
2727 #endif
2728 #ifndef CHIP_AU8810
2729 	vortex_wt_init(vortex);
2730 #endif
2731 	// Moved to au88x0.c
2732 	//vortex_connect_default(vortex, 1);
2733 
2734 	vortex_settimer(vortex, 0x90);
2735 	// Enable Interrupts.
2736 	// vortex_enable_int() must be first !!
2737 	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2738 	// vortex_enable_int(vortex);
2739 	//vortex_enable_timer_int(vortex);
2740 	//vortex_disable_timer_int(vortex);
2741 
2742 	dev_info(vortex->card->dev, "init.... done.\n");
2743 	spin_lock_init(&vortex->lock);
2744 
2745 	return 0;
2746 }
2747 
2748 static int vortex_core_shutdown(vortex_t * vortex)
2749 {
2750 
2751 	dev_info(vortex->card->dev, "shutdown started\n");
2752 #ifndef CHIP_AU8820
2753 	vortex_eq_free(vortex);
2754 	vortex_Vort3D_disable(vortex);
2755 #endif
2756 	//vortex_disable_timer_int(vortex);
2757 	vortex_disable_int(vortex);
2758 	vortex_connect_default(vortex, 0);
2759 	/* Reset all DMA fifos. */
2760 	vortex_fifo_init(vortex);
2761 	/* Erase all audio routes. */
2762 	vortex_adb_init(vortex);
2763 
2764 	/* Disable MPU401 */
2765 	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2766 	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2767 
2768 	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2769 	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2770 	msleep(5);
2771 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2772 
2773 	dev_info(vortex->card->dev, "shutdown.... done.\n");
2774 	return 0;
2775 }
2776 
2777 /* Alsa support. */
2778 
2779 static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v)
2780 {
2781 	int fmt;
2782 
2783 	switch (alsafmt) {
2784 	case SNDRV_PCM_FORMAT_U8:
2785 		fmt = 0x1;
2786 		break;
2787 	case SNDRV_PCM_FORMAT_MU_LAW:
2788 		fmt = 0x2;
2789 		break;
2790 	case SNDRV_PCM_FORMAT_A_LAW:
2791 		fmt = 0x3;
2792 		break;
2793 	case SNDRV_PCM_FORMAT_SPECIAL:
2794 		fmt = 0x4;	/* guess. */
2795 		break;
2796 	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2797 		fmt = 0x5;	/* guess. */
2798 		break;
2799 	case SNDRV_PCM_FORMAT_S16_LE:
2800 		fmt = 0x8;
2801 		break;
2802 	case SNDRV_PCM_FORMAT_S16_BE:
2803 		fmt = 0x9;	/* check this... */
2804 		break;
2805 	default:
2806 		fmt = 0x8;
2807 		dev_err(v->card->dev,
2808 			"format unsupported %d\n", alsafmt);
2809 		break;
2810 	}
2811 	return fmt;
2812 }
2813 
2814 /* Some not yet useful translations. */
2815 #if 0
2816 typedef enum {
2817 	ASPFMTLINEAR16 = 0,	/* 0x8 */
2818 	ASPFMTLINEAR8,		/* 0x1 */
2819 	ASPFMTULAW,		/* 0x2 */
2820 	ASPFMTALAW,		/* 0x3 */
2821 	ASPFMTSPORT,		/* ? */
2822 	ASPFMTSPDIF,		/* ? */
2823 } ASPENCODING;
2824 
2825 static int
2826 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2827 {
2828 	int a, this_194;
2829 
2830 	if ((bits != 8) && (bits != 16))
2831 		return -1;
2832 
2833 	switch (encod) {
2834 	case 0:
2835 		if (bits == 0x10)
2836 			a = 8;	// 16 bit
2837 		break;
2838 	case 1:
2839 		if (bits == 8)
2840 			a = 1;	// 8 bit
2841 		break;
2842 	case 2:
2843 		a = 2;		// U_LAW
2844 		break;
2845 	case 3:
2846 		a = 3;		// A_LAW
2847 		break;
2848 	}
2849 	switch (nch) {
2850 	case 1:
2851 		this_194 = 0;
2852 		break;
2853 	case 2:
2854 		this_194 = 1;
2855 		break;
2856 	case 4:
2857 		this_194 = 1;
2858 		break;
2859 	case 6:
2860 		this_194 = 1;
2861 		break;
2862 	}
2863 	return (a);
2864 }
2865 
2866 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2867 {
2868 	short int d, this_148;
2869 
2870 	d = ((bits >> 3) * nch);
2871 	this_148 = 0xbb80 / d;
2872 }
2873 #endif
2874